Motion Vector Field Estimation Using Brightness Constancy Assumption and Epipolar Geometry Constraint
In most Photogrammetry and computer vision tasks, finding the corresponding points among images is required. Among many, the Lucas-Kanade optical flow estimation has been employed for tracking interest points as well as motion vector field estimation. This paper uses the IMU measurements to reconstr...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2014-11-01
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| Series: | ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences |
| Online Access: | http://www.isprs-ann-photogramm-remote-sens-spatial-inf-sci.net/II-1/9/2014/isprsannals-II-1-9-2014.pdf |
| Summary: | In most Photogrammetry and computer vision tasks, finding the corresponding points among images is required. Among many, the
Lucas-Kanade optical flow estimation has been employed for tracking interest points as well as motion vector field estimation. This
paper uses the IMU measurements to reconstruct the epipolar geometry and it integrates the epipolar geometry constraint with the
brightness constancy assumption in the Lucas-Kanade method. The proposed method has been tested using the KITTI dataset. The
results show the improvement in motion vector field estimation in comparison to the Lucas-Kanade optical flow estimation. The same
approach has been used in the KLT tracker and it has been shown that using epipolar geometry constraint can improve the KLT tracker.
It is recommended that the epipolar geometry constraint is used in advanced variational optical flow estimation methods. |
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| ISSN: | 2194-9042 2194-9050 |